H211 apron is a new product which developing though optimizing rubber material and formula, resolving the contradiction between spinning and service life.
H 2 11型胶圈是研制开发的新产品，通过优选胶料与优化配方，解决了胶圈适纺性和使用寿命间的矛盾。
H211 apron is a new product which developing though optimizing rubber material and formula, resolving the contradiction between spinning and service life.
H 2 11型胶圈是研制开发的新产品，通过优选胶料与优化配方，解决了胶圈适纺性和使用寿命间的矛盾。
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